cross-sectional area mmsq

Minimum average thickness of insulation mm

Nominal diameter over insulation
mm

Nominal thickness of PVC bedding
mm

Nominal number and diameter of armoured wires no./mm

Nominal thickness of PVC oversheath
mm

Nominal overall diameter of cable mm

70

3.4

18.8

1.2

42/1.6

1.9

29.7

95

3.4

20.5

1.2

45/1.6

1.9

31.4

120

3.4

22.0

1.2

47/1.6

2.0

33.1

150

3.4

23.3

1.2

40/2.0

2.1

35.4

185

3.4

25.1

1.2

43/2.0

2.1

37.2

240

3.4

27.3

1.2

46/2.0

2.2

39.8

300

3.4

29.6

1.2

49/2.0

2.3

42.3

400

3.4

32.3

1.2

53/2.0

2.4

45.2

500

3.4

35.2

1.3

46/2.5

2.5

49.5

630

3.4

38.6

1.4

50/2.5

2.6

53.3

cross-sectional area mmsq

Approximate cable weight kg/m

Nominal drum length
m

Minimum bending radius mm

Nominal internal diameter of ducts mm

70

1.1

1000

450

100

95

1.3

1000

500

100

120

1.4

500

500

100

150

1.7

500

550

100

185

1.9

500

600

100

240

2.1

500

600

100

300

2.4

500

650

100

400

2.8

300

700

100

500

3.5

300

750

100

630

4.1

300

800

100

cross-sectional area mmsq

Maximum DC resistance of conductor at 20 ℃ uohms/m

Maximum AC resistance of conductor at 90 ℃ uohms/m

Reactance at 50Hz
uohms/m

Impedance at 50Hz uohms/m

Maximum Capacitace PF/m

Maximum charging current at normal voltage and frequency mA/m

70

443

568

130

583

288

0.58

95

320

410

123

428

323

0.65

120

253

325

118

346

353

0.71

150

206

265

117

291

380

0.76

185

164

211

112

240

416

0.83

240

125

161

109

195

460

0.92

300

100

130

105

168

506

1.01

400

77.8

102

101

144

561

1.12

500

60.5

81

99.8

129

619

1.24

630

46.9

64

96.1

116

698

1.37

Cross-sectional area mmsq

Current Ratings

Short circuit ratings

Laid direct in ground
Amps

Drawn into ducts
Amps

Laid in air
Amps

One second short circuit rating of conductor
KA

One second short circuit rating of copper per core
KA

70

210

210

240

6.3

Typically

less

then

1kA

95

250

245

295

8.5

120

280

275

335

11.0

150

315

300

380

13.5

185

355

335

435

17.0

240

405

380

510

22.3

300

455

420

580

28.0

400

510

455

670

36.6

500

570

500

770

46.2

630

640

550

880

58.3